Dr. Luis B. Marrero

James Campion, MD, is a physician board-certified in gastroenterology by the American Board of Internal Medicine. Dr. Campion received his medical degree from SUNY University at Buffalo Jacobs School of Medicine and Biomedical Sciences and completed his residency at Johns Hopkins Bayview Medical Center. Dr. Campion is highly rated in 37 conditions, according to our data. His top areas of expertise are Gastric Dysmotility, Diverticular Disease, Barrett Esophagus, Gastrectomy, and Colonoscopy.

Albert Diaz is a Gastroenterologist in Orchard Park, New York. Dr. Diaz is highly rated in 26 conditions, according to our data. His top areas of expertise are Bacterial Gastroenteritis, Small Bowel Bacterial Overgrowth, Gastritis, Familial Adenomatous Polyposis, and Gastrectomy.

Robert D. Hower, Jr., DO, specializes in gastroenterology and is certified by the American Board of Internal Medicine. He is affiliated with UPMC Hamot, UPMC Northwest and UPMC Horizon. He completed his medical degree at Lake Erie College of Osteopathic Medicine and his residency and fellowship at Allegheny General Hospital. Dr. Hower is highly rated in 19 conditions, according to our data. His top areas of expertise are Colitis, Gastrointestinal Bleeding, Familial Adenomatous Polyposis, Gastrectomy, and Endoscopy.